diketahui f(x)=2x-1 dan g(x)= x^{2} +4, tentukan (fog)(x)

f(x) = 2x - 1
g(x) = x² + 4

(fog)(x) ?

(fog)(x)
= f( g(x))

f(x² + 4) = 2(x² + 4) - 1
= 2x² + 8 - 1
= 2x² + 7

(fog)(x)=f(g)(x)

f(x^2+4)=2(x^2)+4))-1
f(x^2+4)=2x^2+8-1
f(x^2+4)=2x^2+7

Semoga Membantu +__+